讀寫致動器

磁盤讀寫頭，簡稱磁頭，是碟盤存儲的結構中的一部分，負責讀取與寫入數據至磁盤。從磁盤中讀取數據時，它會在磁盤上方浮動，並將盤片的磁場轉換為電流，將數據從磁盤中取出。而寫入時則是電流轉換為磁場，將數據存入磁盤^[1][2][3]。多年來它己經過許多次更新迭代^[4][5][6]。

機械硬盤磁頭(正視)

機械硬盤磁頭(側視)

硬盤磁頭的顯微鏡放大圖

一塊浮於硬盤上的磁盤讀寫頭

磁頭讀寫數據的示意圖

引用

1. Magnetic recording technology. 紐約. ISBN 978-0-07-041276-7.
2. Gao, Kaizhong. Architecture for Hard Disk Drives. IEEE Magnetics Letters. 2018, 9 [2022-05-26]. ISSN 1949-3088. doi:10.1109/LMAG.2018.2789888. （原始內容存檔於2022-05-26）.
3. Gao, Kai Zhong; Heinonen, Olle; Chen, Yonghua. Read and write processes, and head technology for perpendicular recording. Journal of Magnetism and Magnetic Materials. Current Perspectives: Perpendicular Recording. 2009-03-01, 321 (6). ISSN 0304-8853. doi:10.1016/j.jmmm.2008.05.025 （英語）.
4. Wood, Roger. Future hard disk drive systems. Journal of Magnetism and Magnetic Materials. Current Perspectives: Perpendicular Recording. 2009-03-01, 321 (6). ISSN 0304-8853. doi:10.1016/j.jmmm.2008.07.027 （英語）.
5. Shirai, Katsuaki; Büttner, Lars; Obi, Shinnosuke; Czarske, Jürgen. An experimental study on the flow behavior near the read-and-write arm in a hard disk drive model with a shroud opening. Microsystem Technologies. 2013-09-01, 19 (9). ISSN 1432-1858. doi:10.1007/s00542-013-1847-3 （英語）.
6. Singh, G.P.; Knigge, B.E.; Payne, R.; Wang, Run-Han; Mate, C.M.; Arnett, P.C.; Davis, C.; Nayak, V.; Wu, Xiao; Schouterden, K.; Baumgart, P. A novel wear-in-pad approach to minimizing spacing at the head/disk interface. IEEE Transactions on Magnetics. 2004-07, 40 (4) [2022-05-26]. ISSN 1941-0069. doi:10.1109/TMAG.2004.828958. （原始內容存檔於2022-06-04）.